I'm a *close* friend of a smoker that managed a 50-person project collaborated across 5 states. The venture was new and unprecedented but it was still one of the smoothest projects in company history. All milestones easily met and not a single screw up. hehe
Most smokers aren't like the "stoners" featured in comedy movies. Illegality forces only the stupid to be open about it so it seems that way.
not a single screw up,wouldn bet on it.